【物理23-15】長さが変化するふりこの周期 - オンライン授業と動画で合格をサポート「中学受験のミカタ」

.bg-primary,.bg-primary:hover,.bg-primary:focus,a.bg-primary:focus,a.bg-primary:hover,button.bg-primary:focus,button.bg-primary:hover,.badge-primary{background:#3d96f9 !important}.btn-primary,.btn-primary:hover{color:#fff;background-color:#3d96f9 !important;border-color:#3d96f9 !important}.text-primary,.filters_col .distance span{color:#3d96f9 !important}.btn-outline-primary{color:#3d96f9 !important;border-color:#3d96f9 !important}.btn-outline-primary:hover{background:0 0 !important}.text-primary a{color:#3d96f9 !important}.bg-secondary,.bg-secondary:hover,.bg-secondary:focus,a.bg-secondary:focus,a.bg-secondary:hover,button.bg-secondary:focus,button.bg-secondary:hover,.irs-bar{background-color:#111 !important}.btn-secondary,.btn-secondary:hover,.btn-secondary:focus{color:#fff;background-color:#111 !important;border-color:#111 !important}.text-secondary{color:#111 !important}.text-secondary a{color:#111 !important}.btn-outline-secondary{color:#111 !important;border-color:#111 !important}.btn-outline-secondary:hover{background:0 0 !important}*,*:before,*:after{-webkit-box-sizing:border-box;box-sizing:border-box}.cp_cont{width:90vw;max-width:calc(640px - 10px);margin:3em auto 10em auto;padding:16px;background:#fff;border:1px solid #424242;box-shadow:#f2f3eb 0px 0px 0px 10px}input[type=text],input[type=tel],input[type=email],textarea,select{vertical-align:top;-webkit-appearance:none;appearance:none;-moz-appearance:none;width:100%;height:2em;padding-left:.4em;border:none;border-radius:0;background:#fff;font-size:1em}input[type=text]:focus,input[type=tel]:focus,input[type=email]:focus,textarea:focus,select:focus{outline:none}textarea{height:10em;min-height:2em;resize:none}input[type=text]::placeholder,input[type=tel]::placeholder,input[type=email]::placeholder,textarea::placeholder,select{text-transform:uppercase;color:#e5e5e5}input[type=submit],input[type=button],button{cursor:pointer;color:#757575;background:#f2f3eb;border:1px solid #424242;padding:1em 2em;transition:all .3s;text-transform:uppercase}input[type=submit]:hover,input[type=button]:hover,button:hover{color:#fff;background:#424242}.cp_cf7name,.cp_cf7name2,.cp_cf7email,.cp_cf7email2,.cp_cf7telephone,.cp_cf7subject,.cp_cf7textarea{margin:0 0 2em}.cp_cf7name{float:left;width:100%}.cp_cf7name2{float:right;width:100%}.cp_cf7email{float:left;width:100%}.cp_cf7telephone{float:right;width:48%}.cp_cf7subject{float:left;width:48%}.cp_cf7textarea{float:left;width:100%}.cp_cf7submit{position:relative;margin:0 auto;text-align:center;width:48%}.cp_cf7submit2{float:left;text-align:center;width:48%}.cp_cf7name:after,.cp_cf7name2:after,.cp_cf7email:after,.cp_cf7email2:after,.cp_cf7telephone:after,.cp_cf7subject:after,.cp_cf7textarea:after{display:block;width:100%;height:2px;margin-top:-1px;content:'';border-width:0 1px 1px;border-style:solid;border-color:#424242}.wpcf7 input,.wpcf7 textarea{margin:4px 10px 12px 0}.wpcf7 textarea{width:80%}.wpcf7 .wpcf7-submit{background:#111;padding:5px 14px;color:#fff;text-transform:uppercase;cursor:pointer;transition:.3s;display:block;border:none;box-shadow:none !important}.wpcf7 .wpcf7-submit:hover,.wpcf7 .wpcf7-submit:focus{background:none #777 !important;color:#fff !important;box-shadow:none !important}